| 摘要 |
<p>(57) Plasmid vectors capable of transforming Saccharomyces cerevisiae to phenotypes characterized by resistance to selective concentrations of sulfonylurea herbicides are disclosed, as well as plasmid vector/host strain systems for expression of DNA normally exogenous to S. cerevisia, a method of introducing DNA normally exogenous to S. cerevisiae to a S. cerevisiae host cell, and a DNA segment comprising a mutant allele of S. cerevisiae ILV2, which allele encodes a gene product resistant to selective concentrations of sulfometuron methyl.</p> |
